Unknown. She
was last seen at approximately 11:30 p.m. at her residence in the
vicinity of the 1500 block of Hill Street. She left the residence in a
dark green, four-door vehicle, possibly a Ford Taurus or Chevrolet Caprice. The driver took Riley to her mother's home, where Riley asked for a jacket. Her brother, who answered the door, asked who was driving the car, and Riley told her brother the driver was a friend. A week or two later, Riley's mother got a phone message which she believes was from Riley. The message wasn't clear, and a man's voice in the background said Riley's name. The call then disconnected and has never been traced. It is unknown if foul play is a factor in Riley's disappearance, and her case remains unsolved.